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1/*
2 * Copyright 2015 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 *
23 */
24#include <linux/kthread.h>
25#include <linux/wait.h>
26#include <linux/sched.h>
27
28#include <drm/drm_drv.h>
29
30#include "amdgpu.h"
31#include "amdgpu_trace.h"
32#include "amdgpu_reset.h"
33
34static enum drm_gpu_sched_stat amdgpu_job_timedout(struct drm_sched_job *s_job)
35{
36 struct amdgpu_ring *ring = to_amdgpu_ring(s_job->sched);
37 struct amdgpu_job *job = to_amdgpu_job(s_job);
38 struct amdgpu_task_info ti;
39 struct amdgpu_device *adev = ring->adev;
40 int idx;
41 int r;
42
43 if (!drm_dev_enter(adev_to_drm(adev), &idx)) {
44 DRM_INFO("%s - device unplugged skipping recovery on scheduler:%s",
45 __func__, s_job->sched->name);
46
47 /* Effectively the job is aborted as the device is gone */
48 return DRM_GPU_SCHED_STAT_ENODEV;
49 }
50
51 memset(&ti, 0, sizeof(struct amdgpu_task_info));
52 adev->job_hang = true;
53
54 if (amdgpu_gpu_recovery &&
55 amdgpu_ring_soft_recovery(ring, job->vmid, s_job->s_fence->parent)) {
56 DRM_ERROR("ring %s timeout, but soft recovered\n",
57 s_job->sched->name);
58 goto exit;
59 }
60
61 amdgpu_vm_get_task_info(ring->adev, job->pasid, &ti);
62 DRM_ERROR("ring %s timeout, signaled seq=%u, emitted seq=%u\n",
63 job->base.sched->name, atomic_read(&ring->fence_drv.last_seq),
64 ring->fence_drv.sync_seq);
65 DRM_ERROR("Process information: process %s pid %d thread %s pid %d\n",
66 ti.process_name, ti.tgid, ti.task_name, ti.pid);
67
68 if (amdgpu_device_should_recover_gpu(ring->adev)) {
69 struct amdgpu_reset_context reset_context;
70 memset(&reset_context, 0, sizeof(reset_context));
71
72 reset_context.method = AMD_RESET_METHOD_NONE;
73 reset_context.reset_req_dev = adev;
74 clear_bit(AMDGPU_NEED_FULL_RESET, &reset_context.flags);
75
76 r = amdgpu_device_gpu_recover(ring->adev, job, &reset_context);
77 if (r)
78 DRM_ERROR("GPU Recovery Failed: %d\n", r);
79 } else {
80 drm_sched_suspend_timeout(&ring->sched);
81 if (amdgpu_sriov_vf(adev))
82 adev->virt.tdr_debug = true;
83 }
84
85exit:
86 adev->job_hang = false;
87 drm_dev_exit(idx);
88 return DRM_GPU_SCHED_STAT_NOMINAL;
89}
90
91int amdgpu_job_alloc(struct amdgpu_device *adev, struct amdgpu_vm *vm,
92 struct drm_sched_entity *entity, void *owner,
93 unsigned int num_ibs, struct amdgpu_job **job)
94{
95 if (num_ibs == 0)
96 return -EINVAL;
97
98 *job = kzalloc(struct_size(*job, ibs, num_ibs), GFP_KERNEL);
99 if (!*job)
100 return -ENOMEM;
101
102 /*
103 * Initialize the scheduler to at least some ring so that we always
104 * have a pointer to adev.
105 */
106 (*job)->base.sched = &adev->rings[0]->sched;
107 (*job)->vm = vm;
108
109 amdgpu_sync_create(&(*job)->explicit_sync);
110 (*job)->vram_lost_counter = atomic_read(&adev->vram_lost_counter);
111 (*job)->vm_pd_addr = AMDGPU_BO_INVALID_OFFSET;
112
113 if (!entity)
114 return 0;
115
116 return drm_sched_job_init(&(*job)->base, entity, owner);
117}
118
119int amdgpu_job_alloc_with_ib(struct amdgpu_device *adev,
120 struct drm_sched_entity *entity, void *owner,
121 size_t size, enum amdgpu_ib_pool_type pool_type,
122 struct amdgpu_job **job)
123{
124 int r;
125
126 r = amdgpu_job_alloc(adev, NULL, entity, owner, 1, job);
127 if (r)
128 return r;
129
130 (*job)->num_ibs = 1;
131 r = amdgpu_ib_get(adev, NULL, size, pool_type, &(*job)->ibs[0]);
132 if (r) {
133 if (entity)
134 drm_sched_job_cleanup(&(*job)->base);
135 kfree(*job);
136 }
137
138 return r;
139}
140
141void amdgpu_job_set_resources(struct amdgpu_job *job, struct amdgpu_bo *gds,
142 struct amdgpu_bo *gws, struct amdgpu_bo *oa)
143{
144 if (gds) {
145 job->gds_base = amdgpu_bo_gpu_offset(gds) >> PAGE_SHIFT;
146 job->gds_size = amdgpu_bo_size(gds) >> PAGE_SHIFT;
147 }
148 if (gws) {
149 job->gws_base = amdgpu_bo_gpu_offset(gws) >> PAGE_SHIFT;
150 job->gws_size = amdgpu_bo_size(gws) >> PAGE_SHIFT;
151 }
152 if (oa) {
153 job->oa_base = amdgpu_bo_gpu_offset(oa) >> PAGE_SHIFT;
154 job->oa_size = amdgpu_bo_size(oa) >> PAGE_SHIFT;
155 }
156}
157
158void amdgpu_job_free_resources(struct amdgpu_job *job)
159{
160 struct amdgpu_ring *ring = to_amdgpu_ring(job->base.sched);
161 struct dma_fence *f;
162 unsigned i;
163
164 /* Check if any fences where initialized */
165 if (job->base.s_fence && job->base.s_fence->finished.ops)
166 f = &job->base.s_fence->finished;
167 else if (job->hw_fence.ops)
168 f = &job->hw_fence;
169 else
170 f = NULL;
171
172 for (i = 0; i < job->num_ibs; ++i)
173 amdgpu_ib_free(ring->adev, &job->ibs[i], f);
174}
175
176static void amdgpu_job_free_cb(struct drm_sched_job *s_job)
177{
178 struct amdgpu_job *job = to_amdgpu_job(s_job);
179
180 drm_sched_job_cleanup(s_job);
181
182 amdgpu_sync_free(&job->explicit_sync);
183
184 /* only put the hw fence if has embedded fence */
185 if (!job->hw_fence.ops)
186 kfree(job);
187 else
188 dma_fence_put(&job->hw_fence);
189}
190
191void amdgpu_job_set_gang_leader(struct amdgpu_job *job,
192 struct amdgpu_job *leader)
193{
194 struct dma_fence *fence = &leader->base.s_fence->scheduled;
195
196 WARN_ON(job->gang_submit);
197
198 /*
199 * Don't add a reference when we are the gang leader to avoid circle
200 * dependency.
201 */
202 if (job != leader)
203 dma_fence_get(fence);
204 job->gang_submit = fence;
205}
206
207void amdgpu_job_free(struct amdgpu_job *job)
208{
209 if (job->base.entity)
210 drm_sched_job_cleanup(&job->base);
211
212 amdgpu_job_free_resources(job);
213 amdgpu_sync_free(&job->explicit_sync);
214 if (job->gang_submit != &job->base.s_fence->scheduled)
215 dma_fence_put(job->gang_submit);
216
217 if (!job->hw_fence.ops)
218 kfree(job);
219 else
220 dma_fence_put(&job->hw_fence);
221}
222
223struct dma_fence *amdgpu_job_submit(struct amdgpu_job *job)
224{
225 struct dma_fence *f;
226
227 drm_sched_job_arm(&job->base);
228 f = dma_fence_get(&job->base.s_fence->finished);
229 amdgpu_job_free_resources(job);
230 drm_sched_entity_push_job(&job->base);
231
232 return f;
233}
234
235int amdgpu_job_submit_direct(struct amdgpu_job *job, struct amdgpu_ring *ring,
236 struct dma_fence **fence)
237{
238 int r;
239
240 job->base.sched = &ring->sched;
241 r = amdgpu_ib_schedule(ring, job->num_ibs, job->ibs, job, fence);
242
243 if (r)
244 return r;
245
246 amdgpu_job_free(job);
247 return 0;
248}
249
250static struct dma_fence *
251amdgpu_job_prepare_job(struct drm_sched_job *sched_job,
252 struct drm_sched_entity *s_entity)
253{
254 struct amdgpu_ring *ring = to_amdgpu_ring(s_entity->rq->sched);
255 struct amdgpu_job *job = to_amdgpu_job(sched_job);
256 struct dma_fence *fence = NULL;
257 int r;
258
259 if (!fence && job->gang_submit)
260 fence = amdgpu_device_switch_gang(ring->adev, job->gang_submit);
261
262 while (!fence && job->vm && !job->vmid) {
263 r = amdgpu_vmid_grab(job->vm, ring, job, &fence);
264 if (r)
265 DRM_ERROR("Error getting VM ID (%d)\n", r);
266 }
267
268 return fence;
269}
270
271static struct dma_fence *amdgpu_job_run(struct drm_sched_job *sched_job)
272{
273 struct amdgpu_ring *ring = to_amdgpu_ring(sched_job->sched);
274 struct amdgpu_device *adev = ring->adev;
275 struct dma_fence *fence = NULL, *finished;
276 struct amdgpu_job *job;
277 int r = 0;
278
279 job = to_amdgpu_job(sched_job);
280 finished = &job->base.s_fence->finished;
281
282 trace_amdgpu_sched_run_job(job);
283
284 /* Skip job if VRAM is lost and never resubmit gangs */
285 if (job->vram_lost_counter != atomic_read(&adev->vram_lost_counter) ||
286 (job->job_run_counter && job->gang_submit))
287 dma_fence_set_error(finished, -ECANCELED);
288
289 if (finished->error < 0) {
290 DRM_INFO("Skip scheduling IBs!\n");
291 } else {
292 r = amdgpu_ib_schedule(ring, job->num_ibs, job->ibs, job,
293 &fence);
294 if (r)
295 DRM_ERROR("Error scheduling IBs (%d)\n", r);
296 }
297
298 job->job_run_counter++;
299 amdgpu_job_free_resources(job);
300
301 fence = r ? ERR_PTR(r) : fence;
302 return fence;
303}
304
305#define to_drm_sched_job(sched_job) \
306 container_of((sched_job), struct drm_sched_job, queue_node)
307
308void amdgpu_job_stop_all_jobs_on_sched(struct drm_gpu_scheduler *sched)
309{
310 struct drm_sched_job *s_job;
311 struct drm_sched_entity *s_entity = NULL;
312 int i;
313
314 /* Signal all jobs not yet scheduled */
315 for (i = DRM_SCHED_PRIORITY_COUNT - 1; i >= DRM_SCHED_PRIORITY_MIN; i--) {
316 struct drm_sched_rq *rq = &sched->sched_rq[i];
317 spin_lock(&rq->lock);
318 list_for_each_entry(s_entity, &rq->entities, list) {
319 while ((s_job = to_drm_sched_job(spsc_queue_pop(&s_entity->job_queue)))) {
320 struct drm_sched_fence *s_fence = s_job->s_fence;
321
322 dma_fence_signal(&s_fence->scheduled);
323 dma_fence_set_error(&s_fence->finished, -EHWPOISON);
324 dma_fence_signal(&s_fence->finished);
325 }
326 }
327 spin_unlock(&rq->lock);
328 }
329
330 /* Signal all jobs already scheduled to HW */
331 list_for_each_entry(s_job, &sched->pending_list, list) {
332 struct drm_sched_fence *s_fence = s_job->s_fence;
333
334 dma_fence_set_error(&s_fence->finished, -EHWPOISON);
335 dma_fence_signal(&s_fence->finished);
336 }
337}
338
339const struct drm_sched_backend_ops amdgpu_sched_ops = {
340 .prepare_job = amdgpu_job_prepare_job,
341 .run_job = amdgpu_job_run,
342 .timedout_job = amdgpu_job_timedout,
343 .free_job = amdgpu_job_free_cb
344};
1/*
2 * Copyright 2015 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 *
23 */
24#include <linux/kthread.h>
25#include <linux/wait.h>
26#include <linux/sched.h>
27
28#include <drm/drm_drv.h>
29
30#include "amdgpu.h"
31#include "amdgpu_trace.h"
32#include "amdgpu_reset.h"
33#include "amdgpu_dev_coredump.h"
34#include "amdgpu_xgmi.h"
35
36static void amdgpu_job_do_core_dump(struct amdgpu_device *adev,
37 struct amdgpu_job *job)
38{
39 int i;
40
41 dev_info(adev->dev, "Dumping IP State\n");
42 for (i = 0; i < adev->num_ip_blocks; i++)
43 if (adev->ip_blocks[i].version->funcs->dump_ip_state)
44 adev->ip_blocks[i].version->funcs
45 ->dump_ip_state((void *)&adev->ip_blocks[i]);
46 dev_info(adev->dev, "Dumping IP State Completed\n");
47
48 amdgpu_coredump(adev, true, false, job);
49}
50
51static void amdgpu_job_core_dump(struct amdgpu_device *adev,
52 struct amdgpu_job *job)
53{
54 struct list_head device_list, *device_list_handle = NULL;
55 struct amdgpu_device *tmp_adev = NULL;
56 struct amdgpu_hive_info *hive = NULL;
57
58 if (!amdgpu_sriov_vf(adev))
59 hive = amdgpu_get_xgmi_hive(adev);
60 if (hive)
61 mutex_lock(&hive->hive_lock);
62 /*
63 * Reuse the logic in amdgpu_device_gpu_recover() to build list of
64 * devices for code dump
65 */
66 INIT_LIST_HEAD(&device_list);
67 if (!amdgpu_sriov_vf(adev) && (adev->gmc.xgmi.num_physical_nodes > 1) && hive) {
68 list_for_each_entry(tmp_adev, &hive->device_list, gmc.xgmi.head)
69 list_add_tail(&tmp_adev->reset_list, &device_list);
70 if (!list_is_first(&adev->reset_list, &device_list))
71 list_rotate_to_front(&adev->reset_list, &device_list);
72 device_list_handle = &device_list;
73 } else {
74 list_add_tail(&adev->reset_list, &device_list);
75 device_list_handle = &device_list;
76 }
77
78 /* Do the coredump for each device */
79 list_for_each_entry(tmp_adev, device_list_handle, reset_list)
80 amdgpu_job_do_core_dump(tmp_adev, job);
81
82 if (hive) {
83 mutex_unlock(&hive->hive_lock);
84 amdgpu_put_xgmi_hive(hive);
85 }
86}
87
88static enum drm_gpu_sched_stat amdgpu_job_timedout(struct drm_sched_job *s_job)
89{
90 struct amdgpu_ring *ring = to_amdgpu_ring(s_job->sched);
91 struct amdgpu_job *job = to_amdgpu_job(s_job);
92 struct amdgpu_task_info *ti;
93 struct amdgpu_device *adev = ring->adev;
94 int idx;
95 int r;
96
97 if (!drm_dev_enter(adev_to_drm(adev), &idx)) {
98 dev_info(adev->dev, "%s - device unplugged skipping recovery on scheduler:%s",
99 __func__, s_job->sched->name);
100
101 /* Effectively the job is aborted as the device is gone */
102 return DRM_GPU_SCHED_STAT_ENODEV;
103 }
104
105 adev->job_hang = true;
106
107 /*
108 * Do the coredump immediately after a job timeout to get a very
109 * close dump/snapshot/representation of GPU's current error status
110 * Skip it for SRIOV, since VF FLR will be triggered by host driver
111 * before job timeout
112 */
113 if (!amdgpu_sriov_vf(adev))
114 amdgpu_job_core_dump(adev, job);
115
116 if (amdgpu_gpu_recovery &&
117 amdgpu_ring_soft_recovery(ring, job->vmid, s_job->s_fence->parent)) {
118 dev_err(adev->dev, "ring %s timeout, but soft recovered\n",
119 s_job->sched->name);
120 goto exit;
121 }
122
123 dev_err(adev->dev, "ring %s timeout, signaled seq=%u, emitted seq=%u\n",
124 job->base.sched->name, atomic_read(&ring->fence_drv.last_seq),
125 ring->fence_drv.sync_seq);
126
127 ti = amdgpu_vm_get_task_info_pasid(ring->adev, job->pasid);
128 if (ti) {
129 dev_err(adev->dev,
130 "Process information: process %s pid %d thread %s pid %d\n",
131 ti->process_name, ti->tgid, ti->task_name, ti->pid);
132 amdgpu_vm_put_task_info(ti);
133 }
134
135 dma_fence_set_error(&s_job->s_fence->finished, -ETIME);
136
137 /* attempt a per ring reset */
138 if (amdgpu_gpu_recovery &&
139 ring->funcs->reset) {
140 dev_err(adev->dev, "Starting %s ring reset\n", s_job->sched->name);
141 /* stop the scheduler, but don't mess with the
142 * bad job yet because if ring reset fails
143 * we'll fall back to full GPU reset.
144 */
145 drm_sched_wqueue_stop(&ring->sched);
146 r = amdgpu_ring_reset(ring, job->vmid);
147 if (!r) {
148 if (amdgpu_ring_sched_ready(ring))
149 drm_sched_stop(&ring->sched, s_job);
150 atomic_inc(&ring->adev->gpu_reset_counter);
151 amdgpu_fence_driver_force_completion(ring);
152 if (amdgpu_ring_sched_ready(ring))
153 drm_sched_start(&ring->sched, 0);
154 goto exit;
155 }
156 dev_err(adev->dev, "Ring %s reset failure\n", ring->sched.name);
157 }
158
159 if (amdgpu_device_should_recover_gpu(ring->adev)) {
160 struct amdgpu_reset_context reset_context;
161 memset(&reset_context, 0, sizeof(reset_context));
162
163 reset_context.method = AMD_RESET_METHOD_NONE;
164 reset_context.reset_req_dev = adev;
165 reset_context.src = AMDGPU_RESET_SRC_JOB;
166 clear_bit(AMDGPU_NEED_FULL_RESET, &reset_context.flags);
167
168 /*
169 * To avoid an unnecessary extra coredump, as we have already
170 * got the very close representation of GPU's error status
171 */
172 set_bit(AMDGPU_SKIP_COREDUMP, &reset_context.flags);
173
174 r = amdgpu_device_gpu_recover(ring->adev, job, &reset_context);
175 if (r)
176 dev_err(adev->dev, "GPU Recovery Failed: %d\n", r);
177 } else {
178 drm_sched_suspend_timeout(&ring->sched);
179 if (amdgpu_sriov_vf(adev))
180 adev->virt.tdr_debug = true;
181 }
182
183exit:
184 adev->job_hang = false;
185 drm_dev_exit(idx);
186 return DRM_GPU_SCHED_STAT_NOMINAL;
187}
188
189int amdgpu_job_alloc(struct amdgpu_device *adev, struct amdgpu_vm *vm,
190 struct drm_sched_entity *entity, void *owner,
191 unsigned int num_ibs, struct amdgpu_job **job)
192{
193 if (num_ibs == 0)
194 return -EINVAL;
195
196 *job = kzalloc(struct_size(*job, ibs, num_ibs), GFP_KERNEL);
197 if (!*job)
198 return -ENOMEM;
199
200 /*
201 * Initialize the scheduler to at least some ring so that we always
202 * have a pointer to adev.
203 */
204 (*job)->base.sched = &adev->rings[0]->sched;
205 (*job)->vm = vm;
206
207 amdgpu_sync_create(&(*job)->explicit_sync);
208 (*job)->generation = amdgpu_vm_generation(adev, vm);
209 (*job)->vm_pd_addr = AMDGPU_BO_INVALID_OFFSET;
210
211 if (!entity)
212 return 0;
213
214 return drm_sched_job_init(&(*job)->base, entity, 1, owner);
215}
216
217int amdgpu_job_alloc_with_ib(struct amdgpu_device *adev,
218 struct drm_sched_entity *entity, void *owner,
219 size_t size, enum amdgpu_ib_pool_type pool_type,
220 struct amdgpu_job **job)
221{
222 int r;
223
224 r = amdgpu_job_alloc(adev, NULL, entity, owner, 1, job);
225 if (r)
226 return r;
227
228 (*job)->num_ibs = 1;
229 r = amdgpu_ib_get(adev, NULL, size, pool_type, &(*job)->ibs[0]);
230 if (r) {
231 if (entity)
232 drm_sched_job_cleanup(&(*job)->base);
233 kfree(*job);
234 }
235
236 return r;
237}
238
239void amdgpu_job_set_resources(struct amdgpu_job *job, struct amdgpu_bo *gds,
240 struct amdgpu_bo *gws, struct amdgpu_bo *oa)
241{
242 if (gds) {
243 job->gds_base = amdgpu_bo_gpu_offset(gds) >> PAGE_SHIFT;
244 job->gds_size = amdgpu_bo_size(gds) >> PAGE_SHIFT;
245 }
246 if (gws) {
247 job->gws_base = amdgpu_bo_gpu_offset(gws) >> PAGE_SHIFT;
248 job->gws_size = amdgpu_bo_size(gws) >> PAGE_SHIFT;
249 }
250 if (oa) {
251 job->oa_base = amdgpu_bo_gpu_offset(oa) >> PAGE_SHIFT;
252 job->oa_size = amdgpu_bo_size(oa) >> PAGE_SHIFT;
253 }
254}
255
256void amdgpu_job_free_resources(struct amdgpu_job *job)
257{
258 struct dma_fence *f;
259 unsigned i;
260
261 /* Check if any fences where initialized */
262 if (job->base.s_fence && job->base.s_fence->finished.ops)
263 f = &job->base.s_fence->finished;
264 else if (job->hw_fence.ops)
265 f = &job->hw_fence;
266 else
267 f = NULL;
268
269 for (i = 0; i < job->num_ibs; ++i)
270 amdgpu_ib_free(NULL, &job->ibs[i], f);
271}
272
273static void amdgpu_job_free_cb(struct drm_sched_job *s_job)
274{
275 struct amdgpu_job *job = to_amdgpu_job(s_job);
276
277 drm_sched_job_cleanup(s_job);
278
279 amdgpu_sync_free(&job->explicit_sync);
280
281 /* only put the hw fence if has embedded fence */
282 if (!job->hw_fence.ops)
283 kfree(job);
284 else
285 dma_fence_put(&job->hw_fence);
286}
287
288void amdgpu_job_set_gang_leader(struct amdgpu_job *job,
289 struct amdgpu_job *leader)
290{
291 struct dma_fence *fence = &leader->base.s_fence->scheduled;
292
293 WARN_ON(job->gang_submit);
294
295 /*
296 * Don't add a reference when we are the gang leader to avoid circle
297 * dependency.
298 */
299 if (job != leader)
300 dma_fence_get(fence);
301 job->gang_submit = fence;
302}
303
304void amdgpu_job_free(struct amdgpu_job *job)
305{
306 if (job->base.entity)
307 drm_sched_job_cleanup(&job->base);
308
309 amdgpu_job_free_resources(job);
310 amdgpu_sync_free(&job->explicit_sync);
311 if (job->gang_submit != &job->base.s_fence->scheduled)
312 dma_fence_put(job->gang_submit);
313
314 if (!job->hw_fence.ops)
315 kfree(job);
316 else
317 dma_fence_put(&job->hw_fence);
318}
319
320struct dma_fence *amdgpu_job_submit(struct amdgpu_job *job)
321{
322 struct dma_fence *f;
323
324 drm_sched_job_arm(&job->base);
325 f = dma_fence_get(&job->base.s_fence->finished);
326 amdgpu_job_free_resources(job);
327 drm_sched_entity_push_job(&job->base);
328
329 return f;
330}
331
332int amdgpu_job_submit_direct(struct amdgpu_job *job, struct amdgpu_ring *ring,
333 struct dma_fence **fence)
334{
335 int r;
336
337 job->base.sched = &ring->sched;
338 r = amdgpu_ib_schedule(ring, job->num_ibs, job->ibs, job, fence);
339
340 if (r)
341 return r;
342
343 amdgpu_job_free(job);
344 return 0;
345}
346
347static struct dma_fence *
348amdgpu_job_prepare_job(struct drm_sched_job *sched_job,
349 struct drm_sched_entity *s_entity)
350{
351 struct amdgpu_ring *ring = to_amdgpu_ring(s_entity->rq->sched);
352 struct amdgpu_job *job = to_amdgpu_job(sched_job);
353 struct dma_fence *fence = NULL;
354 int r;
355
356 r = drm_sched_entity_error(s_entity);
357 if (r)
358 goto error;
359
360 if (job->gang_submit)
361 fence = amdgpu_device_switch_gang(ring->adev, job->gang_submit);
362
363 if (!fence && job->vm && !job->vmid) {
364 r = amdgpu_vmid_grab(job->vm, ring, job, &fence);
365 if (r) {
366 dev_err(ring->adev->dev, "Error getting VM ID (%d)\n", r);
367 goto error;
368 }
369 }
370
371 return fence;
372
373error:
374 dma_fence_set_error(&job->base.s_fence->finished, r);
375 return NULL;
376}
377
378static struct dma_fence *amdgpu_job_run(struct drm_sched_job *sched_job)
379{
380 struct amdgpu_ring *ring = to_amdgpu_ring(sched_job->sched);
381 struct amdgpu_device *adev = ring->adev;
382 struct dma_fence *fence = NULL, *finished;
383 struct amdgpu_job *job;
384 int r = 0;
385
386 job = to_amdgpu_job(sched_job);
387 finished = &job->base.s_fence->finished;
388
389 trace_amdgpu_sched_run_job(job);
390
391 /* Skip job if VRAM is lost and never resubmit gangs */
392 if (job->generation != amdgpu_vm_generation(adev, job->vm) ||
393 (job->job_run_counter && job->gang_submit))
394 dma_fence_set_error(finished, -ECANCELED);
395
396 if (finished->error < 0) {
397 dev_dbg(adev->dev, "Skip scheduling IBs in ring(%s)",
398 ring->name);
399 } else {
400 r = amdgpu_ib_schedule(ring, job->num_ibs, job->ibs, job,
401 &fence);
402 if (r)
403 dev_err(adev->dev,
404 "Error scheduling IBs (%d) in ring(%s)", r,
405 ring->name);
406 }
407
408 job->job_run_counter++;
409 amdgpu_job_free_resources(job);
410
411 fence = r ? ERR_PTR(r) : fence;
412 return fence;
413}
414
415#define to_drm_sched_job(sched_job) \
416 container_of((sched_job), struct drm_sched_job, queue_node)
417
418void amdgpu_job_stop_all_jobs_on_sched(struct drm_gpu_scheduler *sched)
419{
420 struct drm_sched_job *s_job;
421 struct drm_sched_entity *s_entity = NULL;
422 int i;
423
424 /* Signal all jobs not yet scheduled */
425 for (i = DRM_SCHED_PRIORITY_KERNEL; i < sched->num_rqs; i++) {
426 struct drm_sched_rq *rq = sched->sched_rq[i];
427 spin_lock(&rq->lock);
428 list_for_each_entry(s_entity, &rq->entities, list) {
429 while ((s_job = to_drm_sched_job(spsc_queue_pop(&s_entity->job_queue)))) {
430 struct drm_sched_fence *s_fence = s_job->s_fence;
431
432 dma_fence_signal(&s_fence->scheduled);
433 dma_fence_set_error(&s_fence->finished, -EHWPOISON);
434 dma_fence_signal(&s_fence->finished);
435 }
436 }
437 spin_unlock(&rq->lock);
438 }
439
440 /* Signal all jobs already scheduled to HW */
441 list_for_each_entry(s_job, &sched->pending_list, list) {
442 struct drm_sched_fence *s_fence = s_job->s_fence;
443
444 dma_fence_set_error(&s_fence->finished, -EHWPOISON);
445 dma_fence_signal(&s_fence->finished);
446 }
447}
448
449const struct drm_sched_backend_ops amdgpu_sched_ops = {
450 .prepare_job = amdgpu_job_prepare_job,
451 .run_job = amdgpu_job_run,
452 .timedout_job = amdgpu_job_timedout,
453 .free_job = amdgpu_job_free_cb
454};